#include QMK_KEYBOARD_H

// Defines names for use in layer keycodes and the keymap
enum layer_names {
    _QWERTY,
    _LOWER,
    _RAISE,
    _ADJUST
};

#define LOWER MO(_LOWER)
#define RAISE MO(_RAISE)

// Defines for task manager and such
#define CALTDEL LCTL(LALT(KC_DEL))
#define TSKMGR LCTL(LSFT(KC_ESC))

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {

/* Qwerty
 *
 * ,----------------------------------.           ,----------------------------------.
 * |   Q  |   W  |   E  |   R  |   T  |           |   Y  |   U  |   I  |   O  |   P  |
 * |------+------+------+------+------|           |------+------+------+------+------|
 * |   A  |   S  |   D  |   F  |   G  |           |   H  |   J  |   K  |   L  |   ;  |
 * |------+------+------+------+------|           |------+------+------+------+------|
 * |   Z  |   X  |   C  |   V  |   B  |           |   N  |   M  |   ,  |   .  |   /  |
 * `----------------------------------'           `----------------------------------'
 *                  ,--------------------.    ,--------------------.
 *                  | Ctrl | LOWER| Space|    |BckSpc| RAISE| Shift|
 *                  `--------------------'    `--------------------.
 */
[_QWERTY] = LAYOUT_split_3x5_3(
  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,         KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,
  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,         KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN,
  KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,         KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH,
                    KC_LCTL, LOWER, KC_SPC,         KC_BSPC, RAISE, OSM(MOD_LSFT)
),

/* Raise
 *
 * ,----------------------------------.           ,----------------------------------.
 * |   1  |   2  |   3  |   4  |   5  |           |   6  |   7  |   8  |   9  |   0  |
 * |------+------+------+------+------|           |------+------+------+------+------|
 * |  Tab | Left | Down |  Up  | Right|           |      |   -  |   =  |   [  |   ]  |
 * |------+------+------+------+------|           |------+------+------+------+------|
 * |  Ctrl|   `  |  GUI |  Alt |      |           |      |      |      |   \  |   '  |
 * `----------------------------------'           `----------------------------------'
 *                  ,--------------------.    ,--------------------.
 *                  |      | LOWER|      |    |      | RAISE|      |
 *                  `--------------------'    `--------------------.
 */
[_RAISE] = LAYOUT_split_3x5_3(
  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,         KC_6,    KC_7,    KC_8,    KC_9,    KC_0,
  KC_TAB,    KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT,      _______, KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC,
  KC_LCTL, KC_GRV,  KC_LGUI, KC_LALT, _______,      _______, _______, _______, KC_BSLS,  KC_QUOT,
                    _______, _______, _______,      _______, _______, _______
),

/* Lower
 *
 * ,----------------------------------.           ,----------------------------------.
 * |   !  |   @  |   #  |   $  |   %  |           |   ^  |   &  |   *  |   (  |   )  |
 * |------+------+------+------+------|           |------+------+------+------+------|
 * |  Esc |      |      |      |      |           |      |   _  |   +  |   {  |   }  |
 * |------+------+------+------+------|           |------+------+------+------+------|
 * |  Caps|   ~  |      |      |      |           |      |      |      |   |  |   "  |
 * `----------------------------------'           `----------------------------------'
 *                  ,--------------------.    ,--------------------.
 *                  |      | LOWER|      |    |      | RAISE|  Del |
 *                  `--------------------'    `--------------------.
 */
[_LOWER] = LAYOUT_split_3x5_3(
  KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC,      KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN,
  KC_ESC,  _______, _______, _______, _______,      _______, KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR,
  KC_CAPS, KC_TILD, _______, _______, _______,      _______, _______, _______, KC_PIPE,  KC_DQT,
                    _______, _______, _______,      KC_ENT,  _______, KC_DEL
),

/* Adjust (Lower + Raise)
 *
 * ,----------------------------------.           ,----------------------------------.
 * |  F1  |  F2  |  F3  |  F4  |  F5  |           |   F6 |  F7  |  F8  |  F9  |  F10 |
 * |------+------+------+------+------|           |------+------+------+------+------|
 * |  F11 |  F12 |      |      |      |           |      |      |      |Taskmg|caltde|
 * |------+------+------+------+------|           |------+------+------+------+------|
 * | Reset|      |      |      |      |           |      |      |      |      |      |
 * `----------------------------------'           `----------------------------------'
 *                  ,--------------------.    ,--------------------.
 *                  |      | LOWER|      |    |      | RAISE|      |
 *                  `--------------------'    `--------------------.
 */
[_ADJUST] =  LAYOUT_split_3x5_3(
  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,        KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,
  KC_F11,  KC_F12,  _______, _______, _______,      _______, _______, _______, TSKMGR, CALTDEL,
  QK_BOOT, _______, _______, _______, _______,      _______, _______, _______, _______,  _______,
                    _______, _______, _______,      _______,  _______, _______
)
};

layer_state_t layer_state_set_user(layer_state_t state) {
  return update_tri_layer_state(state, _LOWER, _RAISE, _ADJUST);
}

uint16_t rgb_edit_timer = 0;
uint16_t last_rgb_char = 0;

bool process_record_user(uint16_t keycode, keyrecord_t *record) {
  switch(keycode) {
    case QK_UNDERGLOW_TOGGLE:
    case QK_UNDERGLOW_MODE_NEXT:
    case QK_UNDERGLOW_HUE_DOWN:
    case QK_UNDERGLOW_HUE_UP:
    case QK_UNDERGLOW_SATURATION_DOWN:
    case QK_UNDERGLOW_SATURATION_UP:
    case QK_UNDERGLOW_VALUE_UP:
    case QK_UNDERGLOW_VALUE_DOWN:
      rgb_edit_timer = timer_read();
      last_rgb_char = keycode;
      return true;
  }
  return true;
}

#ifdef OLED_ENABLE

oled_rotation_t oled_init_user(oled_rotation_t rotation) {
    return OLED_ROTATION_180;
}

void render_default_layer_state(void) {
    oled_write_P(PSTR("Layout: "), false);
    switch (get_highest_layer(default_layer_state)) {
        case _QWERTY:
            oled_write_ln_P(PSTR("Qwerty"), false);
            break;
    }
}

#ifdef RGBLIGHT_ENABLE
bool cleared = false;
void render_rgb_state(void) {
    if(!rgblight_get_mode()) {
        if(!cleared) {
            oled_clear();
            cleared = true;
        }
        return;
    }
    cleared = false;
    uint8_t width = (OLED_DISPLAY_WIDTH/OLED_FONT_WIDTH)-10;
    uint8_t hue = (rgblight_get_hue()*width/255),
        sat = (rgblight_get_sat()*width/255),
        val = (rgblight_get_val()*width/255);
    bool changing_hue = timer_elapsed(rgb_edit_timer) < 1000 && (last_rgb_char == QK_UNDERGLOW_HUE_UP || last_rgb_char == QK_UNDERGLOW_HUE_DOWN);
    bool changing_sat =  timer_elapsed(rgb_edit_timer) < 1000 && (last_rgb_char == QK_UNDERGLOW_SATURATION_UP || last_rgb_char == QK_UNDERGLOW_SATURATION_DOWN);
    bool changing_val =  timer_elapsed(rgb_edit_timer) < 1000 && (last_rgb_char == QK_UNDERGLOW_VALUE_UP || last_rgb_char == QK_UNDERGLOW_VALUE_DOWN);

    uint8_t i;

    oled_write_ln_P(PSTR(""), false);

    oled_write_P(PSTR("Hue:    ["), changing_hue);
    for(i = 0; i < width; ++i) {
        oled_write_P(i<hue?PSTR("-"):i==hue?PSTR("|"):PSTR(" "), changing_hue);
    }
    oled_write_P(PSTR("]"), changing_hue);
    oled_write_P(PSTR("Sat:    ["), changing_sat);
    for(i = 0; i < width; ++i) {
        oled_write_P(i<sat?PSTR("-"):i==sat?PSTR("|"):PSTR(" "), changing_sat);
    }
    oled_write_P(PSTR("]"), changing_sat);
    oled_write_P(PSTR("Bri:    ["), changing_val);
    for(i = 0; i < width; ++i) {
        oled_write_P(i<val?PSTR("-"):i==val?PSTR("|"):PSTR(" "), changing_val);
    }
    oled_write_P(PSTR("]"), changing_val);
}
#endif // RGBLIGHT_ENABLE

void render_layer_state(void) {
    oled_write_P(PSTR("Layer:  "), false);
    switch (get_highest_layer(layer_state)) {
        case _QWERTY:
            oled_write_ln_P(PSTR("Base"), false);
            break;
        case _LOWER:
            oled_write_ln_P(PSTR("Lower"), false);
            break;
        case _RAISE:
            oled_write_ln_P(PSTR("Raise"), false);
            break;
        case _ADJUST:
            oled_write_ln_P(PSTR("Adjust"), false);
            break;
        default:
            oled_write_ln_P(PSTR("Unknown"), false);
    }
}

void render_keylock_status(led_t led_state) {
    oled_write_P(PSTR("Lock:   "), false);
    oled_write_P(PSTR("123"), led_state.num_lock);
    oled_write_P(PSTR(" "), false);
    oled_write_ln_P(led_state.caps_lock?PSTR("ABC"):PSTR("abc"), led_state.caps_lock);
}

void render_mod_status(uint8_t modifiers) {
    oled_write_P(PSTR("Mods:   "), false);
    oled_write_P(PSTR("S"), (modifiers & MOD_MASK_SHIFT));
    oled_write_P(PSTR(" "), false);
    oled_write_P(PSTR("C"), (modifiers & MOD_MASK_CTRL));
    oled_write_P(PSTR(" "), false);
    oled_write_P(PSTR("A"), (modifiers & MOD_MASK_ALT));
    oled_write_P(PSTR(" "), false);
    oled_write_ln_P(PSTR("W"), (modifiers & MOD_MASK_GUI));
}

static void render_status(void) {
    // Host Keyboard Layer Status
    render_default_layer_state();
    render_layer_state();
    render_keylock_status(host_keyboard_led_state());
    render_mod_status(get_mods() | get_oneshot_mods());
#ifdef RGBLIGHT_ENABLE
    render_rgb_state();
#endif // RGBLIGHT_ENABLE
}

static void render_logo(void) {
    static const char PROGMEM logo[] = {
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    };

    oled_write_raw_P(logo, 1024);
}

bool oled_task_user(void) {
    if (is_keyboard_master()) {
        render_status();     // Renders the current keyboard state (layer, lock, caps, scroll, etc)
    }
    else {
        render_logo();
    }
    return false;
}
#endif
